Chapter 6 Rocks – Quiz Study Guide
Name ________________________ Period _______
Earth Science
1.
All rocks contain _minerals__.
2.
Mafic magma is dark_ in color.
3.
Extrusive igneous rocks cool (quickly or slowly) from lava.
4.
Granite is an example of a(n) intrusive igneous__ rock.
5.
Which observation about an igneous rock would support the inference that the rock cooled slowly
underground?
a. the rock has well-defined layers
b. the rock is about 50 percent plagioclase feldspar
c. the rock is light in color and low in density
d. the rock has large crystals
6.
Cooling and crystallization are two processes that form __igneous ___ rocks.
7.
Fossils are most likely to be found in sedimentary__ rocks.
8.
Sedimentary rocks of __organic __ origin would most likely be formed from the shells of marine
animals.
9.
When water erodes and deposits rock fragments a __clastic ____ sedimentary rock will form.
10.
___Cementation_____ and __compaction _____ are two processes that can form sedimentary rocks
from fragments of weathered rock.
11.
_Sedimentary ______ rocks cover most of the continents.
12.
__Particle ____ size is used to classify a rock as shale, sandstone, or conglomerate.
13.
Which characteristic of an igneous rock provides the most information about how it formed?
_texture__
14.
Granite is an intrusive igneous rock because it cooled _slowly _____ below the surface.
15.
Arrange the clastic sedimentary rocks in order from smallest to largest grain size?
Shale, sandstone, conglomerate
16.
_Metamorphic ____ rocks are identified by their banding of minerals.
17.
Classifying rocks as igneous, sedimentary, or metamorphic is based upon differences in their
__origin___.
18.
The recrystallization of heated rock will form _metamorphic ____ rocks.
19.
Regional _______ metamorphism is often associated with mountain building.
20.
Be able to identify igneous rocks and mineral composition using the Scheme for Igneous Rock
Identification.
21.
What property makes slate a rock that can be used for roofing shingles? It can be split into layers____
22.
What metamorphic rock comes from granite? __Gneiss____
23.
Contact ________ metamorphism is a change in a rock that occurs when magma being forced to the
surface touches the surrounding rock.
24.
Metamorphic rocks form as the direct result of __heat___ and _presssure____ causing changes to
existing rocks.
25.
The presence of many metamorphic rocks in Virginia is an indication that the area has been subjected to
intense ___heat _____ and ___pressure_____.
26.
All the energy that drives the Earth’s rock cycle comes from the Earth’s interior____ and _sun_.
27.
Scientists use the Rock cycle to describe the processes by which one type of rock can be changed into
another type of rock.
28.
The distorted structure or folded layers in metamorphic rocks is most likely the result of extreme
pressure.
29.
What three processes can transform igneous rock into sedimentary rocks?
Weathering, erosion, and cementation
30.
Which sedimentary rock is a fossil fuel and used to produce electricity?
Coal